Floor plank



FIG. 1 is a perspective view of the floor plank of the present design;

FIG. 2 is a first end view of the floor plank of FIG. 1, the second opposed end view of the floor plank being identical to the first end view;

FIG. 3 is a first side view of the floor plank of FIG. 1;

FIG. 4 is a second side view of the floor plank of FIG. 1;

FIG. 5 is a top view of the floor plank of FIG. 1; and,

FIG. 6 is a bottom view of the floor plank of FIG. 1.

The wavy lines shown on the figures are disclosed to shown indeterminate length and width of the claimed design. 

The ornamental design for a floor plank, as shown and described. 